At -114 degrees wind chill, the mountain’s summit was colder than Antarctica’s temperatures on Sunday.

In Philadelphia, the massive fire began on Saturday morning and raged throughout the day. The air temperature was in the mid-20s when the fire started before it plunged, causing the water being used to fight the fire to freeze over.

‘Once you have water flowing and this type of temperature, it freezes up quickly, you have slippery conditions for the members,’ Fire Commissioner Derrick Sawyer told Philly.com.

With the water freezing fast, salt trucks were brought in to give firefighters more traction.

One firefighter was taken to Temple University Hospital and was in stable condition, according to Philly.com. The nature of the injury is not known.

A mother and infant who live nearby were taken to a hospital as a precaution, according to the American Red Cross.

In New Hampshire, nearly 50 people were rescued from a ski resort tram after it became stuck 40 feet off the ground in sub-zero temperatures.

The tram riders were stuck for approximately three hours in the record-breaking cold before being rescued. It has yet to be confirmed if the weather played a roll in the incident.

The weather will warm across the country on Monday, with temperatures in New York climbing into the 30s with snow expected.

About 50 people were trapped on a tram in sub-zero temperatures for three hours at a New Hampshire ski resort on Sunday

All 48 people were lowered out of the Cannon Mountain Aerial Tramway (pictured, left) as it hung high in the air over the ski resort

A lake in Central Park froze over as temperatures in the park reached minus-1 degrees on Sunday morning

A fountain froze over in Bryant Park as New York City Mayor Bill de Blasio told city residents to stay indoors and to be careful of the cold

In Boston, some hurried through their mornings to get outdoor chores done before the worst cold set in.

‘Right now I’m going to drink a coffee’ to stay warm, Carmen Pichente, 40, said en route to her job at a Boston restaurant. ‘Tomorrow, I’m going to stay at home all day.’

However, others brushed it off.

New York won’t be the only state hit with a chilly Valentine’s Day. A cold blast was felt over much of the East Coast during the weekend

‘It’s nothing. I lived in Boston all my life,’ said Eddie Brown, 51, a delivery truck driver out on his rounds. Asked why he wasn’t wearing a coat, Brown replied, ‘I got long underwear on.’

Kevin Taylor, a 49-year-old native of Massachusetts living on the street in Harvard Square, outside Boston, said he had coped with the cold on his own.

‘I got a sleeping bag sized tent that protects me from wind and snow. I got a zero degree sleeping bag and fleece blankets,’ Taylor said. ‘I was born and raised in New England. I’m used to this. It’ll start breaking tomorrow.’

In Cambridge, Massachusetts, Kristen Carlson, 25 and her boyfriend Ross Crory, also 25, were adapting their Valentine’s Day plans.

In parts of New England, shelters were opened to residents who lost power and were left without heat.

About 8,000 customers were without power Sunday in Lynn, Massachusetts and about 1,400 people lost power in Vermont’s Northeast Kingdom, where temperatures dropped to 20 below on Sunday. Officials opened municipal buildings to help chilled residents.

People walk down 8th avenue in New York on Saturday. Temperatures in the city broke Valentine’s Day records on Sunday, reaching minus-one in Central Park

Some people opted for large scarves and hoods to brace themselves from the cold in New York City on Sunday

Street photographers brave the cold to photograph guests arriving to the Alexander Wang Fall 2016 show during New York Fashion Week on Saturday

Bridgeport, Connecticut saw temperatures as low as minus 6 on Sunday, breaking last year’s record of 3 degrees.

Connecticut Natural Gas said customers in Berlin started reporting outages around 4am on Sunday.

Officials told WFSB-TV the outage was caused by a frozen regulator. Crews were hoping to have service restored by the evening.

The Berlin Police Department says town officials have opened a warming shelter at a middle school to help affected residents.

Officials believe extreme cold in Vermont broke a utility pole, knocking out service to about 1,500 homes.

An emergency generator didn’t kick in for Sheffield Selectboard chairman Walter Smith, who said he lost a greenhouse full of about 500 orchids.

People walking the streets of Manhattan on Sunday made sure they were wrapped up warm as temperatures dipped well below freezing

The freezing temperatures did not stop tourists from exploring the streets of Manhattan, although they made sure they were wearing warm coats

Temperatures were so cold that one woman wore a mask over her face while out in Queens, New York to protect her mouth from the freezing weather

Despite the freezing weather, the fashion pack were still out in force near Bryant Park for New York Fashion Week which is taking place this week

One woman attending New York Fashion Week went without a scarf or gloves and braved the cold temperatures while walking to one fashion show

‘I’ve got it working now but it’s too late,’ he said.

Police said weather was a factor in the pile-up Saturday in Pennsylvania that saw dozens of vehicles – tractor-trailers, box trucks, cars and SUVs – tangled together across three lanes and the snow-covered median of Interstate 78.

A snow squall appears to have moved through at the time of the crash. Three people were killed and dozens sent to hospitals.

The bone-chilling cold canceled horse racing at Hollywood Casino at Charles Town Races in West Virginia and at New York’s Aqueduct Racetrack.

The Central Park Ice Festival, which was to feature ice-carving artists and music, was shelved, becoming the second event this year in Central Park to be dampened by the weather. Last month a free winter sports day called Winter Jam was canceled because of Storm Jonas.

People still, however, enjoyed walks and runs in the park on Sunday, despite the freezing temperatures.

‘I’m dumb enough to do this,’ exclaimed John Male before starting a 12-mile park run on Sunday morning.

‘I just always come out and I just decided not to do anything differently’ except to wear a furry tiger hat over a winter hat, in addition to four layers of clothing.

Goodbye Arctic blast: The weather across the country will go up with New York breaking into the 30s with snow

By Tuesday the country will be even warmer with the northernmost part of Maine hitting 43 degrees and New York in the mid-50s

The weather continues to be consistent again on Wednesday the the north east sitting in the 30s and 40s again

Temperatures won’t be at their highest on Thursday but it will be no where near as could as Valentine’s Day weekend

By Friday northerners will be able to enjoy the weekend with New York’s highs in the 50s on Saturday and Sunday

And even with the freezing temperatures, tourists cloaked in heavy layers wandered over the Brooklyn Bridge to Manhattan, snapping photos.

Some people embraced the extremes, with more than 2,000 taking part in the Sea Isle, New Jersey, annual ‘Polar Bear Plunge’, dipping into the icy Atlantic to raise funds for the city’s revitalization.

But elsewhere in New Jersey, the cold kept people inside. In a bagel shop that’s usually brimming with customers on Sunday mornings, Joe Weir was among a small handful of people who sat drinking coffee.

‘I just came from a church service, and it definitely wasn’t as packed as it usually is,’ the 60-year-old Toms River man said. ‘We have a lot of elderly parishioners, and when the weather gets bad or real cold like this, a lot them choose to stay in and watch a Mass on TV instead of going to church. Can’t say I blame them.’

In Washington, DC, where temperatures hit a milder 14 degrees on Sunday, people gathered for the city’s annual Cupid’s Undie Run to raise money for charity on Saturday, when temperatures hit 20 degrees.

About 1,200 people made the undie run in DC with the help of some alcohol and a dance party warm-up.

Runners braved the frigid weather to combat neurofibromatosis, a genetic disorder of the nervous system that affects how nerve cells form and grow, causing tumors to form along nerves throughout the body.

Some people decided to bundle up a little during the run, in which people don their Valentine’s-themed underwear and raise funds for the Children’s Tumor Foundation.

Despite the cold temperatures, many Cupid’s Undie Run participants appeared to be enjoying the run through Washington, DC on Saturday

People wait to run in Cupid’s Undie Run to raise money for charity on Saturday in Washington, DC, where the high was just 20 degrees

Valentine’s Day plans also didn’t seem to be stalled, either.

Nic Faitos, owner of Starbright Floral Design, in New York, was anticipating about 2,000 deliveries this weekend. He said his business double-wraps all the flowers to protect them.

‘If they fall below about 25 degrees they will start to freeze. The petals will become completely wilted,’ he said.

Temperatures were expected to climb before a winter storm already bringing snow to the Midwest moves into the region for the start of the work week.

That storm was expected to bring at least a couple inches of snow in some areas, plus possible icy conditions to the Mid-Atlantic and the Northeast on Monday.

The storm was expected to bring five inches of snow to parts of Kentucky and up to six inches to parts of Tennessee before turning to rain.

Weather service meteorologist Jay Engel said New York City will emerge from the record-breaking cold by Sunday afternoon.

But whoever ventured out between Saturday evening and Sunday morning was hit by wind gusts that in some spots reached 40 mph, bringing the wind chill to at least minus-20.